[SPOILERS] SOMA unsolved mysteries thread

[Abion47]

I agree that the guy in the middle looks like Sarang, but I couldn't say who the other two are. The guy on the left has a wrench in his pocket and looks a bit Asian, so Brandon, maybe? And the syringe makes me think that the lady on the right is either a doctor or biology expert, so Nadine Masters, perhaps?

Interesting note about that formula, though. I was playing the game with my cousin who is working on her engineering master's, and according to her, that formula is a nonsensical mishmash of constants and math symbols. (She seemed to get visibly perturbed about it, too.)